The Large Pet Bed Mat with a Waterproof Lining and a Non-Skid Base from Armarkat is one of the beds with extra features.
This one has waterproof lining, so if you have an older dog that tends to have bladder accidents, it won’t ruin the bed. The cover for this one is removable so you can wash it. The zipper is on the bottom of the long side, which goes approximately 3/4 of the length for cushion removal.
Plus, it has a non-skid base so the bed won’t be scooting all over your floor, a real plus for an older dog.
Large dogs enjoy having something to rest their head on and they also enjoy having support against their back just like their humans do.